Chemical Engineering Thermodynamics Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is Infinity Zero Negative Positive Infinity Zero Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In any spontaneous process, Only A decreases Both F and A increase Both F and A decreases Only F decreases Only A decreases Both F and A increase Both F and A decreases Only F decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which is not a refrigerant? NH₃ SO₂ C₂H₄Cl₂ CCl₂F₂ NH₃ SO₂ C₂H₄Cl₂ CCl₂F₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At the critical point of a substance All of these There is no distinction between liquid and vapour phases Liquid and vapour have the same density The surface tension vanishes All of these There is no distinction between liquid and vapour phases Liquid and vapour have the same density The surface tension vanishes ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole. None of these 25 0 273 None of these 25 0 273 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by T₁/(T₁-T₂) T₂/(T₁-T₂) T₂/R1 T₁/T₂ T₁/(T₁-T₂) T₂/(T₁-T₂) T₂/R1 T₁/T₂ ANSWER DOWNLOAD EXAMIANS APP
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